Home / 13,788.55-20,676.70-3,925.59

Finding the Fourth Proportional to 13,788.55, 20,676.70 and 3,925.59

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Solution

The fourth proportional to 13,788.55, 20,676.70 and 3,925.59 is: 5,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.55 : 20,676.70 = 3,925.59 : x
  2. Step 2: Convert to fraction form
    13,788.55/20,676.70 = 3,925.59/x
  3. Step 3: Cross multiply
    13,788.55x = 20,676.70 × 3,925.59
  4. Step 4: Simplify right side
    13,788.55x = 81,168,246.75
  5. Step 5: Solve for x
    x = 81,168,246.75/13,788.55
  6. Step 6: Final answer
    x = 5,886.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.